经过Kristin Lewotsky，技术作家，Micromo，Clearwater，FL
Arc welding processes require good workmanship to produce sound welds. Poor technique such as an overly long distance between the electrode and the work piece (arc length) can make the difference between a smooth, strong weld and a defective one that is prone to failure. Learning the skill requires time, patience, and significant amounts of materials.
The VRTEX 360 welding simulator uses motors to retract the electrode in a simulated hand piece, allowing the user to experience the sights, sounds, and motions of welding. (Courtesy of Lincoln Electric)
In an effort to reduce the cost of training and train welders faster, the Lincoln Electric Co. and software development partner VRSim developed the VRTEX 360 welding simulator. The system features a welding helmet retrofit to display a virtual-reality environment, with an ultra-realistic hand piece enabled by stepper motors from MICROMO to bring the shop floor welding experience to the classroom. Users can see immediate results of their efforts from the detailed quantitative feedback.
传统上，学习焊接是试验和错误的问题。这是一项需要学生通过大量材料的技能，直到吸收始终如一的技术所需的技术。VRTEX 360为学生提供了一种方式来记录练习的小时数而不消耗过量的材料。
当学生们没有虚拟现实焊接头盔时，他们进入虚拟工地。电极保持器的行为与真正的粘锤焊接器类似。当学生用模拟器撞击电弧时，它们会听到焊接的声音，并且当它们移动虚拟现实电极支架时，它们会看到珠子形成。当它们继续焊接时，电极缩回好像它熔化一样，迫使它们调整以保持适当的弧长。
模拟器还在相邻监视器上呈现虚拟焊接以及详细分析，学生和教练都可以访问定量反馈。在焊接期间，教练可以监控弧长，电极角度和旅行速度等实时度量，然后与学生一起查看数据。该系统可以帮助新学生更快地掌握技术，经验丰富的焊工学习新技能。
虚拟现实系统由模拟器手件，头盔和显示器组成，可提供有关焊接到教师和学生的定量反馈。（由林肯电气提供）
VRTEX 360的值在于电极的现实行为，该电极通过7英寸缩回到手柄中。，在焊缝过程中模拟电极熔化的方式。林肯电气工程团队需要设计机械组件以响应反馈而移动电极。因为烧伤率根据材料和工艺条件而变化，所以固定速度直流电机不会有效。相反，系统需要具有变速运动的电动机，设计简单，可靠地执行，并在小包装中提供所需的扭矩。
Lead engineer Antonius Aditjandra chose a two-phase PreciStep micro-stepper motor. MICROMO also supplied the wiring harness, simplifying the assembly process and eliminating the chance that a motor might be damaged in the wire-bonding process.
Although stepper motors are often run open loop, the motor in the VRTEX 360 required feedback for accurate simulation. A sensor monitors the distance between the end of the electrode and the coupon, as well as rod angle and speed. This allows it to monitor user performance and properly simulate the process.
The welding helmet features virtual-reality goggles that provide a view of a virtual work site and ultra-realistic image of their virtual weld during the process. (Courtesy of Lincoln Electric)
Normally, it would seem that a low-torque motor would be sufficient to handle such lightweight material. Not so, says Aditjandra. “Manufacturing plastic is always a challenge because of the 0.020-in. tolerance. Any out-of-tolerance part will create friction. I wanted to make sure that the stepper motor had enough torque to actually push through the worst-case scenario.”
此外，外壳必须符合模制塑料部件的制造公差。性能一致性更为重要。模拟器的值在于提供测量，可重复的体验。“扭矩的一致性很重要，因为当学生正在构建肌肉记忆时，他们需要确保他们以适当的燃烧费率喂食消耗品，”Aditjandra增加。
MICROMO
www.micromo.com
Lincoln Electric
www.lincolnelectric.com
VRSIM
www.vrsim.net
Filed Under:电子•电气,Fastening + joining • locks • latches • pins,Materials • advanced,Motors (direct-drive) + frameless motors
德ar Sir ,
This is Deshpande foundation based at hubli. Karnataka , India. which is basically training institute. We plan to start the Welding program. I need the help What are training aids / Machines required ?Pl let me know.Is there any branches in India near by ?
请让我知道细节。